Method of and apparatus for moistening yarns.



0. H. GILLEY. METHOD OF AND APPARATUS POR MOISTENING YARNS. APPLICATION FILED JULY 2, 1912.

1,090,971.. Patented M21224, 1914.

a citizen of the United OSBORN H. GELEY, 0F WESTFORD, MASSACHUSETT$,

SONS CORPORATION, OF GRANITEVILL MAss orrtrsErrs.

nnrnon' or AND ASSIGNOR T0 C. G. SAIBGENTS E, MASSAQHUSETTS, A CORPORATION OF APPARATUS MOISTENING YARNS.

' Specification of Letters Patent.

Patented Mar. 2st, 1914..

Application filed July 2, 1912. semi No. 707,170,.

To all whom it may concern: Be it known that I, OsBoRN H. GILLEY, States, residing at VVestford, in the county of Middlesex and State of Massachusetts, have invented a new and useful Methodof and Apparatus :tbr Moistening Yarns, of which the following is a specification. f

This invention has for its principal object the efiicient, quick, and uniform moistening of yarniwound either on cones, tubes, or bobbins so that the quent processes ciency;

Another object of the invention is to provide for the conditioning or moistening of worsted top and goods of similar character.

Reference is to be had to the accompanying drawing, in which the figure is a side elevation, with parts broken away to show yarn may be used in subsewith a high degree of ethlnterlor constructiom-ot a preferred embodiment of the invention. i

It is well known that after being spun, yarn retains its tendency to kink, due to its twist, and if the filling is not aged sufiiciently and the twist thus set, as it is unwound from the bobbins, tubes, or cops, it will cause serious imperfections ished goods and interfere with the eificient handling of the yarn during the operations which it passes through in the mill. Un this account moisture is generally introduced into yarn, and it is also brought to a fixed standard, but it has been found rather difiicult to accomplish this readily and to make the moisture content of the yarn uniform, particularly where it is wound on cones or cross-wound to a comparatively great depth. Under ordinary circumstances the yarn standing for with the humidity near the dew point Wlll take up the proper percentage or moisture only on the outside layers, particularly if it is cross-wound. It has been found also that if the i used in rooms which are not themselves kegt moist, the moisture will leave the yarn and this lessens the strength of the yarn, it being well understood, that when the yarn contains the proper amount of moisture it is stronger than "otherwise Referring to the drawings and in detail, they show a main cylinder or chamber 10 provided wit a door 11 at one end which is in the fincoil in the evaporator.

anumber'of hours in a room -water in the evaporator adapted to be removed when the chamber water glass of course is graduated so that the amount of water int-he receptacle at all At the bottom of the chamber 10 is a surface evaporator '15 adapted .to be filled by water from the pipe s. It is provided with .a double bottom and steam coil therein provided with an inlet 16 and an outlet 17 for the steam. at any convenient a pipe 20 with an air pump 21 operated in any desired way.

The apparatus is used and the method is carried outin the following manner. The yarn is first weighed and the operator decides how much moisture is to be introduced into the yarn. Then he opens the valve 12 allowing the amount of water which he wishes to introduce into the yarn to run into the evaporator and then shuts off the flow. The air is then exhausted from the cylinder or chamber 10 bymeans of the air pump and steam is allowed to pass into the Under ordinary con ditions a 28-inch vacuum is provided with the barometer at 30-inches. The Water which has been drawn into the will pass into vapor at 101, and consequently the yarn does not have to be heated up materially above the temperature of the rooms in which it is to be used, and it cannot be injured by the heat employed. Nor is the water lost from the yarn so readily as it would be if introduced at a higher temperature. The heat is kept on until the has been entirely evaporated, and as it-is in the form of vapor it passes directly into the yarn and replaces the air which has been exhausted previously.

evaporator hose yarn layers which are nearest the center of the tube,

bobbin or cop receive as much moisture as those on the outside, be-

causethe air has been exhausted from them and the moisture is the only-thing that can take its place. When all of the water in the evaporator has been vaporized the steam, vof course, is shut ofi' and the temperature in by heating said evaporator the chamberallowed to fall to that of the room,. after which the door is removed and the yarn taken from the chamber. It will be seen, therefore, that .an absolutely safe way is provided for introducing any desired amount of moisture into the yarn no matter how the yarn is arranged. At the same time a system is provided in which it is necessary for the moisture to enter the innermost convolutions of the yarn and thus provide a uniform moisture content throughout the entire length of yarn on each bobbin or cop. Although I have illustrated and described and a simple method of carrying out the invention, I am aware that modifications can .be made therein by any person skilled in the art. without departing from the scope of the invention as expressed in the claims. Therefore, I do not wish to be limited to all the details hereinshown and described, but

What I-do claim is:-

l. A method of moistening yarn which consists in placing the yarn in a receptacle having a surface evaporator entirely inclosed therein, placing a predetermined quantity of water on said evaporator within said receptacle,- reducing the air pressure in said receptacle and by steam circulating within the evaporator but out of contact with the water thereon.

2. A method of moistening yarn, which consists in inclosing the yarn in an air-tight receptacle, supplyin a predetermined quantity of water to sai a preferred embodiment of the invention,

evaporating the water receptacle, exhausting the air from the receptacle, and completely evaporating said water. in saidfreceptacle.

3. An apparatus for moistening yarn having in combination an air tight chamber for the yarn, means for exhausting the air therefrom, a surface evaporator therein, means for introducing a measured quantity of water into the evaporator, and means for orating the water. therein thereby causing a redetermined quantity of moisture to be added to the yarn.

4:. An apparatus for moistening yarn having in combination an air tight chamber for the yarn, a surface evaporator therein, a receptacle for water outside the chamber having a gage for showing the amount of water in said receptacle, and a pipe with-a valve therein connecting said receptacle to said evaporator whereby a predetermine quantity of water as shown by the gage may be introduced through the pipe and valve into said evaporator within 5. In an apparatus for moistening yarn, the combination of a closed chamber for the yarn, therein, means for introducing a measured quantity of Water into said evaporator and means for entirely evaporating said water.

In testimony whereof my hand, in the presence. of two subscribing witnesses.

OSBORN H. CILLEY.

Witnesses: r

FRED W. SWAIN, FRANK Commas.

said chamber.

heating the evaporator and completely evapa surface evaporator inclosed' I- have hereunto set 

